%A . RIDWAN %T PENGARUH PENAMBAHAN ACIDIFIER PADA AIR MINUM TERDAHAP PERFORMA AYAM KAMPUNG UNGGUL BALITBANGTAN (KUB) %X Penelitian ini bertujuan untuk mengetahui pengaruh penambahan acidifier pada air minum sebagai feed additif terhadap performa ayam kampung unggul Balitbangtan (KUB). Penelitian ini dilaksanakan pada Januari--Maret 2023 di kandang Open House Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) 4 perlakuan dan 5 ulangan, yaitu P0 ; air minum tanpa penambahan asam sitrat (Kontrol), P1 ; air minum dengan penambahan 0,5% asam sitrat, P2 ; air minum dengan penambahan 1% asam sitrat dan P3 ; air minum dengan penambahan 1,5% asam sitrat. Data dianalisis menggunakan analisis sidik ragam dengan taraf 5% apabila perlakuan berbeda nyata (P<0,05) maka diuji lanjut dengan uji BNT. Hasil penelitian menunjukan bahwa penambahan asam sitrat tidak berpengaruh nyata (P>0,05) terhadap konsumsi ransum, pertambahan bobot tubuh dan konversi ransum. Penambahan acidifier pada air minum dengan dosis sampai 1,5% secara ad libitum cenderung memberikan penurunan pertambahan bobot tubuh meskipun bobot yang dihasilkan masih dalam kondisi normal dan penambahan acidifier (asam sitrat) pada air minum sampai dengan dosis 1,5% belum mampu memberikan efek terbaik terhadap performa ayam KUB. Kata kunci : Acidifier, Ayam KUB, dan Performa This research aims to determine the effect of adding acidifier to drinking water as a feed additive on the performance of KUB chickens. This research was conducted from January--March 2023 in the Open House cage of the Department of Animal Husbandry, Faculty of Agriculture, University of Lampung. This study used a completely randomized design (CRD) 4 treatments and 5 replicated, namely P0; drinking water without the addition of citric acid (Control), P1; drinking water with the addition of 0.5% citric acid, P2; drinking water with the addition of 1% citric acid and P3; drinking water with the addition of 1.5% citric acid. Data were analyzed using analysis of variance with a level of 5% if the treatment is significantly different (P < 0.05) then tested further with the LSD test. The results showed that the addition of citric acid had no significant effect (P>0.05) on ration consumption, body weight gain and ration conversion. The addition of acidifier in drinking water with doses up to 1.5% ad libitum tends to decrease body weight gain even though the resulting weight is still in normal conditions and the addition of acidifier (citric acid) in drinking water up to a dose of 1.5% has not been able to provide the best effect on the performance of KUB chickens. Keywords: Acidifier, KUB chicken, and performance %D 2023 %C UNIVERSITAS LAMPUNG %R 1914241037 %I FAKULTAS PERTANIAN %L eprints71658